24 #define AM7XXX_STORAGE_VID 0x1de1 25 #define AM7XXX_STORAGE_PID 0x1101 26 #define AM7XXX_STORAGE_CONFIGURATION 1 27 #define AM7XXX_STORAGE_INTERFACE 0 28 #define AM7XXX_STORAGE_OUT_EP 0x01 30 static unsigned char switch_command[] =
31 "\x55\x53\x42\x43\x08\x70\x52\x89\x00\x00\x00\x00\x00\x00" 32 "\x10\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
37 libusb_device_handle *usb_device;
38 int current_configuration;
42 ret = libusb_init(NULL);
44 fprintf(stderr,
"libusb_init failed: %s\n",
45 libusb_error_name(ret));
49 libusb_set_debug(NULL, LIBUSB_LOG_LEVEL_INFO);
51 usb_device = libusb_open_device_with_vid_pid(NULL,
54 if (usb_device == NULL) {
55 fprintf(stderr,
"libusb_open failed: %s\n", strerror(errno));
60 current_configuration = -1;
61 ret = libusb_get_configuration(usb_device, ¤t_configuration);
63 fprintf(stderr,
"libusb_get_configuration failed: %s\n",
64 libusb_error_name(ret));
65 goto out_libusb_close;
68 if (current_configuration != AM7XXX_STORAGE_CONFIGURATION) {
69 ret = libusb_set_configuration(usb_device,
70 AM7XXX_STORAGE_CONFIGURATION);
72 fprintf(stderr,
"libusb_set_configuration failed: %s\n",
73 libusb_error_name(ret));
74 fprintf(stderr,
"Cannot set configuration %d\n",
75 AM7XXX_STORAGE_CONFIGURATION);
76 goto out_libusb_close;
80 libusb_set_auto_detach_kernel_driver(usb_device, 1);
82 ret = libusb_claim_interface(usb_device, AM7XXX_STORAGE_INTERFACE);
84 fprintf(stderr,
"libusb_claim_interface failed: %s\n",
85 libusb_error_name(ret));
86 fprintf(stderr,
"Cannot claim interface %d\n",
87 AM7XXX_STORAGE_INTERFACE);
88 goto out_libusb_close;
95 current_configuration = -1;
96 ret = libusb_get_configuration(usb_device, ¤t_configuration);
98 fprintf(stderr,
"libusb_get_configuration after claim failed: %s\n",
99 libusb_error_name(ret));
100 goto out_libusb_release_interface;
103 if (current_configuration != AM7XXX_STORAGE_CONFIGURATION) {
104 fprintf(stderr,
"libusb configuration changed (expected: %d, current: %d)\n",
105 AM7XXX_STORAGE_CONFIGURATION, current_configuration);
107 goto out_libusb_release_interface;
110 len =
sizeof(switch_command);
113 ret = libusb_bulk_transfer(usb_device, AM7XXX_STORAGE_OUT_EP,
114 switch_command, len, &transferred, 0);
115 if (ret != 0 || (
unsigned int)transferred != len) {
116 fprintf(stderr,
"ret: %d\ttransferred: %d (expected %u)\n",
117 ret, transferred, len);
118 goto out_libusb_release_interface;
121 fprintf(stderr,
"OK, command sent!\n");
123 out_libusb_release_interface:
124 libusb_release_interface(usb_device, AM7XXX_STORAGE_INTERFACE);
126 libusb_close(usb_device);